Pump



Jan. 16, 1923. 1,442,641. c. F. BRANDENBERGER.

PUMP.

FILED JUNEH. 1920. 3 SHEETS-4M2] l.

Patented Jan. 16, 1923.

UN IT E D ST AT ES PATENT .orFicE.

CA RL F. BRANDENBERGER, OF FORT MADISON, IOWA.

PUMP.

Application filed June 11, 1920.

'1 0 01 Z w/wxm it may concern Be it known that .I, CARL F. Brennan)-BERGER, a citizen of thc United States, rcsiding at Fort Madison, in thecounty of Lee and State of Iowa, have invented a new and useful rPump,of which the following is a specification.

It is the object of this invention to provide a pump which may be soconstructed that it will operate without packing boxes. there being noloss of water whilst the pump is in operation.

Another object of the invention is to provide novel means whereby thewater Will be permitted to drain down, so that the pump cannot freeze.

It is Within the province oi the disclosure to improve generally and toenhance the utility of devices ofthat type to which the inventionappertains.

With the above and otherobjects in View, which will appear as thedescription procee d s, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that, within the scopa ofWhat is claimed, changes in the precise emhodimentof the invention showncan be made without departing from the spirit of the invention.

In the accompanying drawings:

Figure 1 is a diagram showing a pump constructed in accordance with theinvention: Figure 2 is a side elevation showing the cylinders-andattendant parts. portions being, broken away; Figure 3 is a crosssection on the line 33 of Figure 2: Figure 4. is an elevation showingthe pistons. parts being broken away; Figures 5 and 6 are sectionaldetails showing the valves at the respective ends of the piston rod;Figure T is a cross section on the line 7-7 of Figure 2;

and Figure 8 is a diagram showing a slightly mo ified form of theinvention.

ln carrying out the invention, connected vertically alined cylinders 1and 2 are provided. the cylinder 1 being slightly larger in diameterthan the cylinder 2. the cylinder 2 having a foot 3 and the cylinder 1being provided With acap 4 retaining a disk 5 having an opening 6controlled by a (l()\\'l1 wardly closing check valve 7 located in thecap 4. The cylinders 1 and 2 have transverse extensions defining alateral chamber 8. the inlet of which is provided with a screen 9. Apipe 10 is connected to the cap 4, the

Serial No. 388,298.

upper end of the pipe communicating with a valve seat 21) located at thelOWEI end of an air chamber 17. A valve 21, which may be a ball valve.is located in the air chamber 17 and is adapted to cooperate .with-theseat 20, upward movement of the valve-being limited. if desired. by astop 22 in the air chamber. A pipe 18 is provided, the lower end 19 ofthe pipe extending downwardly into the upper end of the air chamber 17.so that air can accumulate inithe upper end of the chamber andleffeet acontinuous flowlirom-the. pipe 18,the lpipeibeing provided with anoutlet 12. The pipe 1 8 is carried by a base 11. A bypass 14communicates at its lower end with the cylinder 2 adjacent to the lowerend of the said cylinder. the upper end of the bypass wmrnunicatinn withthe pipe 10 immediately above the cylinder 1 andbeloiw the airchamber16. Adownwardly closing; check valve 15 is intenposed win thebypass 14 and is located closely adjacent to'the cylinder 2, the checkvalvehaving a minute bleed port 1 6. A out oif valve 23 is'looated inthe pipe 18 between the .air chamber 1;7 and the outlet 12 and may bemanipulated in any suitable Way, for instance. by means. of an arm 24and an operating.member 25, the operating member beingslidably mountedin the base 10.

A rod-26'is located in the cylinders 1 and Q and carries an upper piston27 operating in the cylinder 1. As indicated in Figure 5. the upperpiston 27 may include a tubular body 28 havinga shoulder 29 and a neck30. A spider 31 is threaded on theneck iii]. a washer 32bei-nghonnd'betmee-nthe spider and the shoulder. An upwardly opening! valve 83controls thepassage of !liquid downwardly through the tubular body andis located Within the spider 31. On the lower end of the rod 26 there isa lower piston 6. shown in detail in Figure 6. The piston 46 includes atubular body 34havinp a shoulder 35 and :1 depending neck 36. A spider3.7 is threaded on the neck 36. a ring 38 .and a washer 39 beinginterposed between the end of the spider and the shoulder A ,valve 40operates in the spider 37 and controls a passage of liquid upwardlythrough the member 34. the valve preferably including! a cork body 41 onthe upper end of which is a top piece {E2 of leather or the like. theparts 41 and 42 bcing'held together by a se curing element 43. A tube44, of small diameter, passes through the bars 41 and 42,

and constitutes a bleed port. A hollow cap 45 is mounted in the upperend of the body 34 and has side openings 47, the lower end of the rod 26being connected to the cap. The rod 26 has an odset arm 48 slidablymounted in the upper portion of the chamher 8 and mounted slidably, ifdesired, in the base 11. The upper end of the arm 48 may be connected inany suitable way as indicated at 49 to an operating means :30 of anydesired sort.

Assuming that the cylinders l and 2 are submerged to about the levelindicated at 51 the water will enter the space between the pistons 27and t6. by way of the inlet 9 and the lateral chamber 8. On theupstroke, the valve 33 will close. the valve 40 will open, and the checkvalve 15 will close due to the head of water upon it. When the valve 40opens. the water which is between the pistons 27 and 46 will flowdownwardly into the space in the cylinder 2 below the piston 46. Thewater in the cylin der 1 will be raised by the piston 27 and willtraverse the pipe 10, the air chamber 17, the pipe 18 and its outlet 22.On the down stroke, the valve 33 will open, permitting the water in thespace between the pistons 27 and 46 to flow into the s )ace in thecylinder 1 above the piston 27. he valve 40 closes, and water below thepiston 46 is forced out of the lower portion of the cylinder 2 throughthe bypass 14, the check valve 15 opening, and the water from the bypass14 passing into the pipe 10 and the cylinder 1 above the piston 27.

The air chamber 17 affords a steady How of water. When the pump is atrest, the water drains downwardly through the pipe 10 to a point belowthe frost line indicated at 52, the water flowing downwardly through thebypass 14 through the bleed port 16 in the check valve 15, into thelower portion of the cylinder 2, and upwardly through the bypass 44 inthe valve 40, assuming that the valve is seated, which may be the casebecause the valve 40 is buoyant. The buoyant valve 21 follows thedescending column of water and, ultimately cooperates with the seat 20,to hold the water at a head, below the seat 20. If desired, the valve 23may be closed by the operating mechanism 24-25, to prevent a downwarddraining of the water in the pipes 10 and 18 and in the air chamber 17.

It will be observed that the construction of the device is such thatwhen the pumping cylinders are submerged. there is no occasion forpacking glands or the like about the rod 48 at the point where it worksinto the chamber 8. The water, further, is permitted to drain below thefrost line and the chance of freezing is reduced to a lninimuin.

In the modificationishown in Figure 5, parts hereinbefore described havebeen designated by numerals previously used with the sullix a. In thisform of the invention, the air chamber 17 may be omitted if desired. Therelatively short inlet screen 9 of Figure 2 is replaced by a longerinlet 53, the lower end of which constitutes a cylinder 54. At the lowerend of the cylinder 54 there is a foot valve 55. A casing 56communicates with the upper end of the laterally enlarged chamber 8 Arod 57 operates in the parts 56, 8 53 and 54 and carries a piston 58working in the cylinder 54'. This form of the invention is adapted to beused when it is not convenient to submerge the pumping cylinders, thewater level standing, for instance, at the level indicated at in Figure8. The piston 58 delivers the water upwardly into the lateral chamber 8,and thereafter, the operation of the device is practically the same asthat set forth in connection with the form shown in Figure 1. The watermay be permitted to drain downwardly out of the pipe 10 into aconnection 59, and from the connection 59 into the casing 56, and if thewater level rises sufficiently in the casing 56, the water can flow outof the casing by way of an outlet 60.

Having thus described the invention, what is claimed is:-

In a device of the class described, communicating, alined upper andlower cylinders having a lateral chamber provided at its lower end withan inlet; a discharge pipe leading upwardly from the top of the uppercylinder; an airchamber in the pipe; a downwardly closing check valve inthe air chamber; a cut-off valve in the pipe and located above the airchamber and under the control of an operator; pistons in the cylinders;a connection between the pistons and having an operating means extendedlaterally into the chamber and upwardly out of the top of the chamber;an upwardly opening valve in the piston of the upper cylinder; a buoyantupwardly closing valve in the piston of the lower cylinder; a downwardlyclosing check valve at the upper end of the upper cylinder; a by-passconnected to the pipe above the last specified check valve and connectedto the lower cylinder adjacent to the lower end thereof; and a checkvalve in the by-pass.

In testimony that I claim the foregoing as my own. I have hereto affixedmy signature in the presence of two witnesses.

(A RL F. BRANDENBERGER.

Witnesses l? C. CHAMBERS, V

lnos. Li. CHAMBERS.

